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author | practicalswift <practicalswift@users.noreply.github.com> | 2020-02-18 16:41:16 +0000 |
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committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-09 19:24:50 +0000 |
commit | 65a52a002475056183ea8ee1a42b78aec7d68583 (patch) | |
tree | 4fca148892ecdc5ee13938794b621870ab344188 /src/test/fuzz/script_ops.cpp | |
parent | eb7c50ca1f4eafed4bb9a20d3012776545a6a433 (diff) | |
download | bitcoin-65a52a002475056183ea8ee1a42b78aec7d68583.tar.xz |
tests: Add fuzzing harness for CScript operations
Diffstat (limited to 'src/test/fuzz/script_ops.cpp')
-rw-r--r-- | src/test/fuzz/script_ops.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/test/fuzz/script_ops.cpp b/src/test/fuzz/script_ops.cpp new file mode 100644 index 0000000000..0cd129ba7a --- /dev/null +++ b/src/test/fuzz/script_ops.cpp @@ -0,0 +1,67 @@ +// Copyright (c) 2020 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <script/script.h> +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> + +#include <cstdint> +#include <string> +#include <vector> + +void test_one_input(const std::vector<uint8_t>& buffer) +{ + FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); + CScript script = ConsumeScript(fuzzed_data_provider); + while (fuzzed_data_provider.remaining_bytes() > 0) { + switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 7)) { + case 0: + script += ConsumeScript(fuzzed_data_provider); + break; + case 1: + script = script + ConsumeScript(fuzzed_data_provider); + break; + case 2: + script << fuzzed_data_provider.ConsumeIntegral<int64_t>(); + break; + case 3: + script << ConsumeOpcodeType(fuzzed_data_provider); + break; + case 4: + script << ConsumeScriptNum(fuzzed_data_provider); + break; + case 5: + script << ConsumeRandomLengthByteVector(fuzzed_data_provider); + break; + case 6: + script.clear(); + break; + case 7: { + (void)script.GetSigOpCount(false); + (void)script.GetSigOpCount(true); + (void)script.GetSigOpCount(script); + (void)script.HasValidOps(); + (void)script.IsPayToScriptHash(); + (void)script.IsPayToWitnessScriptHash(); + (void)script.IsPushOnly(); + (void)script.IsUnspendable(); + { + CScript::const_iterator pc = script.begin(); + opcodetype opcode; + (void)script.GetOp(pc, opcode); + std::vector<uint8_t> data; + (void)script.GetOp(pc, opcode, data); + (void)script.IsPushOnly(pc); + } + { + int version; + std::vector<uint8_t> program; + (void)script.IsWitnessProgram(version, program); + } + break; + } + } + } +} |